要将所有行连接成字符串并删除新行，我通常使用:

with open('t.txt') as f:
  s = " ".join([l.rstrip("\n") for l in f]) 

file = open("myfile.txt", "r")
lines = file.readlines()
str = ''                                     #string declaration

for i in range(len(lines)):
    str += lines[i].rstrip('\n') + ' '

print str

试试下面的方法:

with open('data.txt', 'r') as myfile:
    data = myfile.read()

    sentences = data.split('\\n')
    for sentence in sentences:
        print(sentence)

注意:不移除\n。它只是为了查看文本，就像没有\n一样

在Python 3.5或更高版本中，使用pathlib可以将文本文件内容复制到一个变量中，并在一行中关闭文件:

from pathlib import Path
txt = Path('data.txt').read_text()

然后你可以使用str.replace删除换行符:

txt = txt.replace('\n', '')

要将所有行连接成字符串并删除新行，我通常使用:

with open('t.txt') as f:
  s = " ".join([l.rstrip("\n") for l in f]) 

如此: 将文件更改为:

LLKKKKKKKKMMMMMMMMNNNNNNNNNNNNN GGGGGGGGGHHHHHHHHHHHHHHHHHHHHEEEEEEEE

然后:

file = open("file.txt")
line = file.read()
words = line.split()

这将创建一个名为words的列表，等于:

['LLKKKKKKKKMMMMMMMMNNNNNNNNNNNNN', 'GGGGGGGGGHHHHHHHHHHHHHHHHHHHHEEEEEEEE']

去掉了"\n"。要回答括号阻碍你的问题，只需这样做:

for word in words: # Assuming words is the list above
    print word # Prints each word in file on a different line

Or:

print words[0] + ",", words[1] # Note that the "+" symbol indicates no spaces
#The comma not in parentheses indicates a space

这将返回:

LLKKKKKKKKMMMMMMMMNNNNNNNNNNNNN, GGGGGGGGGHHHHHHHHHHHHHHHHHHHHEEEEEEEE